This study investigates the material expressiveness that emerges when different clay-based materials come into contact within layered structures of slip, focusing on how these interactions can be developed into sculptural forms.
In ceramic production...
This study investigates the material expressiveness that emerges when different clay-based materials come into contact within layered structures of slip, focusing on how these interactions can be developed into sculptural forms.
In ceramic production, the absorbency of plaster has been used not only for replicating forms but also as a method for expanding the expressive potential of materials. Building on this approach, the present study examines how thin layers of clay—formed as plaster absorbs moisture—generate material interactions, and explores how these reactions can be utilized sculpturally.
Prior to the practical investigation, the concept of “layer” was examined in relation to the production process. In this study, all sculptural formations created through the accumulation of multiple clay layers are defined as layers. Furthermore, the material properties that can be sculpturally employed within layered structures were categorized into translucency, grain, delamination, color, and texture, and examined alongside relevant case studies.
The slip wheel throwing technique was employed to construct multilayered walls for the works. This method was considered suitable for the study’s objectives, as it allows not only structural stability and efficiency but also precise sculptural articulation using a wide range of materials. Through this technique, the study sought to enhance sculptural effects arising from material interactions within the layered structure and to expand the possibilities of forming. To achieve this, three adjustments to material composition were made. First, the alumina content of porcelain slip was modified to increase translucency, enabling clearer visibility of material contrasts within the layers. Second, thickeners were tested to improve the usability and adhesion of non-plastic granular materials on the wall surface. Third, the ratio of feldspar powder was adjusted to control the transparency of inner layers. Additionally, volume (ml) and percentage units were recorded on the base of each work to predict sculptural outcomes prior to firing.
The sculptural characteristics generated through the contact of materials with differing properties were then examined through six series of works. Disappearing Lines explored variations in translucency depending on wall thickness. Drawing with Light investigated how forms within different layers visually intersect as light passes through the wall. Engraved Grain examined the flow of clay revealed by carving and subsequently filling the carved sections with another material. Drawn Relief explored sculptural reliefs produced by delamination occurring when clays of differing qualities meet. Surface of Layers focused on exposing cross-sectional compositions of multiple layers on the outer surface through the placement of granular materials and carving. Touching Textures expanded the material spectrum by composing the wall with diverse particle-based materials to explore contrasting textures.
The significance of this study lies in its demonstration that material properties can be used to reveal the sculptural potential of each layer within a multilayered structure and in its expansion of the range of materials applicable to the slip wheel throwing technique.